This is a simple breakout board from SparkFun for the MPL3115A2 precision altimeter. The MPL3115A2 offers a measuring range of 50 to 110 kPa with an absolute accuracy of down to 0.4 kPa. It has an altitude resolution down to 30 cm. This board should be powered with 1.95 and 3.6 V, and is designed to be connected to a microcontroller via I²C.